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River Redhorse

River Redhorse

The River Redhorse is one of the largest freshwater species in Tennessee and an important native fish whose populations are sensitive and declining, making them indicators of healthy aquatic ecosystems.

Scientific Name: Moxostoma carinatum

Physical Characteristics:
  • River Redhorse reach lengths up to 30 inches and weights over 10 pounds, with some specimens exceeding 16 pounds reported from Tennessee waters.
  • They are distinguished by their large, stout body with a prominent head (about 1/4 standard length), deeply plicate lips without papillae, and characteristic bright red caudal and dorsal fins with orange to red lower fins.
  • They possess enlarged, molar-like pharyngeal teeth that efficiently crush mollusk shells.

What to know

Habitat Distribution

  • In Tennessee, River Redhorse inhabit medium to large rivers with moderate to strong currents, preferring clear, unpolluted waters with gravel or cobble substrates.
  • Look for long, deep run habitats in medium to large rivers throughout the Tennessee River drainage system.

Key Locations

  • In Tennessee, the Pigeon River has documented populations and has produced the state record.
  • They're found in the Tennessee River system, including documented populations in the Pigeon River where they've been monitored since the 1980s.

Specific Spots

  • Target deeper run habitats 1-10 feet deep with gravel or cobble substrates and moderate currents.

River Redhorse FAQ

Answers from onWater's species guide.

What are the best lures and bait for River Redhorse in Tennessee?

Nightcrawlers and earthworms are highly effective, as are small crayfish which match their natural diet. Live clams and cut clam can be particularly productive given their mollusk specialization.

When is the best time to fish for River Redhorse in Tennessee?

Late spring through early summer are the best periods. Avoid targeting them directly during spawning in early April when water temperatures reach 72-76°F.

How do you catch River Redhorse in Tennessee?

Use slip-float rigs or bottom-bouncing presentations. Keep baits on or near the substrate where they naturally feed. Be prepared for powerful runs when hooked.

What do River Redhorse eat?

River Redhorse are bottom-feeders specializing in mollusks and crustaceans - mollusks comprise a higher percentage of their diet than any other sucker species, including exotic Asiatic clams. They also consume crayfish, mayflies, beetles, caddisflies, and other benthic invertebrates.

Where do River Redhorse live in Tennessee?

In Tennessee, River Redhorse inhabit medium to large rivers with moderate to strong currents, preferring clear, unpolluted waters with gravel or cobble substrates. Look for long, deep run habitats in medium to large rivers throughout the Tennessee River drainage system.

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